Question

One of the main contributing factors to the extinction of the dinosaurs 65 million years ago was a large comet or asteroid that struck the earth. It threw up so much dust that the sun was blocked for a period of many months. Suppose the asteroid had a mass of 4.0x10e13 and hit the earth (mass = 6x10e24 kg) with an impact speed of 4.0x10e4 m/s.

What would be the earth's recoil speed after such a collision? (Use a reference frame in which the earth was initially at rest.) m/s

What percentage is this of the earth's speed around the sun, 3x10e4 m/s? (Hint: Take the change in speed, divide by the earth's orbital speed, and multiply by 100 to make it a percentage rather than a decimal.)

Answer 1

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PAGE NO.: DATE: / Percentage of the recoil velocib of te ewith respect to ear th's speadl anound the Sen Yesoil velocrt tas 0ar speicl of ear taaround tha sen X 100 3X10' 2019-11-22 20:37